2044442145 has 32 divisors (see below), whose sum is σ = 3439422720. Its totient is φ = 1035498240.

The previous prime is 2044442137. The next prime is 2044442149. The reversal of 2044442145 is 5412444402.

It is not a de Polignac number, because 2044442145 - 2³ = 2044442137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2044442149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11989 + ... + 65058.

It is an arithmetic number, because the mean of its divisors is an integer number (107481960).

Almost surely, 2^2044442145 is an apocalyptic number.

It is an amenable number.

2044442145 is a deficient number, since it is larger than the sum of its proper divisors (1394980575).

2044442145 is a wasteful number, since it uses less digits than its factorization.

2044442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77145.

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 2044442145 is about 45215.5077932339. The cubic root of 2044442145 is about 1269.1850321458.

Adding to 2044442145 its reverse (5412444402), we get a palindrome (7456886547).

The spelling of 2044442145 in words is "two billion, forty-four million, four hundred forty-two thousand, one hundred forty-five".